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Method of manufacturing an aluminum substrate thick film heater

  • US 20010014373A1
  • Filed: 04/16/2001
  • Published: 08/16/2001
  • Est. Priority Date: 08/09/1999
  • Status: Abandoned Application
First Claim
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1. The method of making a resistive element heater comprising the steps of:

  • forming a metal substrate from metal stock having a CTE greater than 16×

    10E

    6


    C.;

    roughening the surface of the metal substrate;

    applying ceramic oxide dielectric powders by thermally bonding onto the roughened surface forming a densified dielectric layer;

    printing a thick film resistive layer on said dielectric; and

    applying ceramic oxide overcoat by thermally bonding onto the said resistive layer and said dielectric layer.

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